# K173188: The Graft Natural Bone Substitute

- Pathway: 510(k) (Abbreviated)
- Applicant: Purgo Biologics, Inc.
- Decided: Jul 20, 2018 after 291 days
- Product code: NPM (Bone Grafting Material, Animal Source)
- Device class: 2
- Regulation: 21 CFR 872.3930
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K871773 (1987). 10 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K140714: Porcine Anorganic Bone Mineral, Collagen Matrix, Inc. (2014) Summary page 4.

## Most influential descendants
- K191737: The Graft Bone Substitute (2020), 0 descendants of its own

## Indications for use
THE Graft Bone Substitute is intended for use as a bone grafting material in dental surgery such as: - Filling of extraction sockets to enhance preservation of the alveolar ridge - Elevation of maxillary sinus floor

Source page: https://510kreport.com/device/K173188
Methodology: https://510kreport.com/methodology